1. The concept of the normal range;Benson;Hum. Pathol.,1972
2. Statistical methods for assessing agreement between two methods of clinical measurement;Bland;Lancet,1986
3. Plasma carnitines: reference values in an ambulatory population;Boulat;Eur. J. Clin. Chem. Clin. Biochem.,1993
4. Standardization of H reflex and diagnostic use in S1 radiculopathy;Braddom;Arch. Phys. Med. Rehabil.,1974
5. Manual of Nerve Conduction Studies;Buschbacher,2000